King v Ivanhoe Gold Corporation Limited

The High Court of Australia considered an appeal by the plaintiff, Mr. King, against a decision of the Supreme Court of Western Australia. The dispute arose from a contract where Mr. King was engaged by the manager of Ivanhoe Gold Corporation Limited to improve the company's gold extraction process. Mr. King claimed that no fixed sum was agreed upon, but that he was promised "handsome payment" if his efforts were successful, with payment depending on results. His work proved successful, and he subsequently sued for £5,000. The jury awarded him £3,600, which was apparently calculated as 10% of an estimated annual saving of £36,000. The Supreme Court had set aside this verdict and ordered a new trial.

The central legal issues before the High Court were whether the jury had been correctly directed on the assessment of damages for breach of contract and, consequently, whether the damages awarded were excessive. Specifically, the court had to determine the proper measure of damages in a contract where payment was conditional on success and described as "handsome," and whether the jury had been permitted to leave the amount of damages at large. The court also considered whether a new trial should be limited to the issue of damages or encompass the entire case.

The High Court reasoned that in an action for breach of contract, there must be a discernible measure or basis for calculating damages, which cannot be left entirely to the discretion of the jury. The court held that the proper approach was to first ascertain what would constitute fair remuneration for the actual services rendered under ordinary circumstances, and then to increase that amount by a reasonable sum to reflect the promise of "handsome payment" and the risk undertaken by the plaintiff. The jury's direction, which allowed them to award a sum commensurate with the result or based on the benefit derived by the company, was deemed incorrect. The court affirmed the Supreme Court's decision that a new trial was necessary due to the improper assessment of damages.

The High Court dismissed the appeal, upholding the Supreme Court's order for a new trial. The court found no reason to interfere with the Supreme Court's discretion in ordering a new trial on the whole case, given the interconnectedness of the issues and the potential for the jury's error on damages to have influenced other aspects of their findings.